Fatty liver disease means that you have fat inside your liver that can, over time, affect liver function and cause liver injury. People who drink too much alcohol may also have fat in their liver, but that condition is different from fatty liver disease. Types of fatty liver disease Health care providers divide fatty liver disease...

Nonalcoholic fatty liver disease (NAFLD), now called metabolic dysfunction-associated liver disease (MASLD), is the build-up of extra fat in liver cells that is not caused by alcohol. It is normal for the liver to contain some fat. However, if more than 5% – 10% percent of the liver’s weight is fat, then it is called a...